Map-gate: The Newest Strange Claims About the Clean Water Protection Rule

Over the last couple days, there has been a barrage of stories about a set of maps that the Environmental Protection Agency had produced, from long-public data maintained by the U.S. Geological Survey, indicating the location of various types of water bodies. These stories have been fueled by breathless charges of government overreach lodged by some members of Congress and by industry lobby groups opposed to an important effort by EPA and the U.S. Army Corps of Engineers to restore protections against pollution to small streams and wetlands. Only in the current House of Representatives and the any-government-is-bad-government press could an expert agency having a map prepared from another expert agency's public data be a reason for hysteria.

A bunch of the stories I’ve seen go like this – just look at the map of State X and see how it’s covered in colored-in waterways, which some people claim reveals that EPA and the Corps are looking to control all land across the country.

Unfortunately for these opponents of clean water, the truth is nothing of the sort. Just read the letters that EPA sent when the agency shared these maps with Congress. In particular, note two things:

EPA cautions against suggesting that the maps reflect any kind of representation of the waters to be regulated by the proposed rule. An EPA official posted a blog yesterday explaining this fact further.

EPA stresses that, to make them show up on the map, the colored lines do not depict the actual width of the waterways, and that -- when viewed at a statewide or national scale -- the effect is to misrepresent the degree to which these waters cover the landscape.

Despite EPA’s warnings, one of which is borne out by the simple use of the zoom function on a computer screen, some in the media, members of Congress, and interests opposed to restoring protections to vulnerable waters are disregarding both cautions. This rhetoric is sadly predictable in the debate about this rule, which has seen opponents of the rule routinely mislead the public, government officials, and their own supporters about what the rule would actually do. Given that history to date, I certainly understand why EPA may not have been eager to put these maps out broadly.

But, I actually think it's a good thing -- it is indicative of the length (if not the width) of streams that are today in legal limbo, and will help people understand that if they're ignored under the Clean Water Act, how damaging it would be to critical waters (including ones that help supply drinking water for one in three Americans).

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